Description

5,6-Carboxyseminaphthofluorescein is a high-purity, functionalized derivative of fluorescein, designed for advanced research and development applications. This compound is valued for its role as a versatile building block and fluorescent probe in the synthesis of novel diagnostic and sensing materials. It is primarily utilized by researchers and manufacturers in the fields of analytical chemistry, biochemistry, and materials science for developing next-generation optical sensors and bioimaging agents.

Application

• Fluorescent Probe Synthesis: A key precursor for creating custom fluorescent dyes and molecular probes with specific spectral properties.
• Bioconjugation & Labeling: Used to develop fluorescent labels for proteins, antibodies, and nucleic acids in diagnostic assay development.
• Sensor Development: Integral in the research and fabrication of chemical and biological sensors for pH, metal ions, or specific analytes.
• Advanced Materials Research: Serves as a functional monomer or dopant in the development of photonic polymers and luminescent nanomaterials.
• Life Science Research: Employed in cellular imaging studies and as a tool compound for investigating biological processes.
• Dye & Pigment Intermediate: Acts as a specialized intermediate for synthesizing high-value, performance dyes.

Basic Information

Product Name	5,6-Carboxyseminaphthofluorescein
CAS No.	151820-33-6
Molecular Formula	C27H16O7
Molecular Weight	452.41 g/mol
Synonyms	5(6)-Carboxyseminaphthofluorescein; 5,6-Carboxy-SNF; Seminaphthofluorescein-5,6-dicarboxylic Acid; SNAFL-5,6-dicarboxylic Acid; 2',7'-Difluoro-3',6'-dihydroxy-5,6-carboxy-spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; 5,6-Carboxy-2',7'-difluoro-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one
EINECS	Contact for details

Quality Control

Our 5,6-Carboxyseminaphthofluorescein is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Heavy Metals	≤ 20 ppm
Residual Solvents	Complies with ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.